Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
push information » much information, pitch information, truth information
information gaps » information gap
than development » chain development, town development, plan development
technology push » technology park, technology parks
costly than » costly trade
gaps does » gaps notes, gaps do, guns does

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology push information gaps does risk communication costly than development _ afrique.*.